S
M
T
W
T
F
S
29
56°
34°
30
55°
33°
1
55°
34°
2
57°
35°
3
59°
34°
4
61°
37°
5
59°
40°
6
58°
36°
7
57°
42°
8
57°
35°
9
61°
40°
10
60°
35°
11
Hist. Avg.
58°
37°
12
Hist. Avg.
58°
37°
13
Hist. Avg.
57°
37°
14
Hist. Avg.
57°
37°
15
Hist. Avg.
57°
37°
16
Hist. Avg.
57°
37°
17
Hist. Avg.
57°
37°
18
Hist. Avg.
57°
37°
19
Hist. Avg.
57°
37°
20
Hist. Avg.
57°
37°
21
Hist. Avg.
57°
37°
22
Hist. Avg.
57°
37°
23
Hist. Avg.
57°
37°
24
Hist. Avg.
57°
37°
25
Hist. Avg.
57°
37°
26
Hist. Avg.
57°
37°
27
Hist. Avg.
57°
37°
28
Hist. Avg.
57°
37°
29
Hist. Avg.
57°
37°
30
Hist. Avg.
57°
37°
31
Hist. Avg.
57°
37°
1
Hist. Avg.
57°
37°
2
Hist. Avg.
57°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Graton
Graton's December 2026 forecast shows daily high temperatures ranging from 55° to 61°, with overnight lows between 33° and 42°. The average high for December is 58° with an average low of 36°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Graton. See also: January | February | March.
